Beef Sandwich with Pink Pickled Onions and Green Beans Recipe
Introduction
This beef sandwich with pink pickled onions offers a delicious twist on a classic. Combining tender leftover beef, vibrant pink onions, crisp green beans, and creamy avocado sauce creates a fresh and flavorful bite perfect for any meal.

Ingredients
- ½ red onion, finely sliced
- 60ml rice vinegar
- 1 tsp caster sugar
- 100g green beans
- 1 demi baguette, halved
- 60g-70g leftover avocado sauce
- 300g leftover beef
- Handful of leftover spicy greens
Instructions
- Step 1: Mix the finely sliced red onion with the rice vinegar, caster sugar, and ¼ teaspoon salt. Set aside to lightly pickle for 20 minutes.
- Step 2: Bring a pan of salted water to a boil over medium heat. Add the green beans and cook for 3-4 minutes until tender but still crisp. Immediately plunge them into a bowl of ice-cold water and leave for 5 minutes. Drain thoroughly and pat dry.
- Step 3: Halve the demi baguette and spread the leftover avocado sauce over the base of each half.
- Step 4: Layer the leftover beef and spicy greens on top of the avocado sauce.
- Step 5: Add the green beans and top with the pink pickled onions. Close the sandwich and enjoy immediately.
Tips & Variations
- Use homemade or store-bought spicy greens to add a peppery kick if you don’t have leftovers on hand.
- Swap green beans for blanched asparagus or snap peas for a different crunch.
- For extra flavor, toast the baguette lightly before assembling the sandwich.
- If you don’t have avocado sauce, mashed avocado with a splash of lemon juice works well as a substitute.
Storage
Store the assembled sandwich chilled in an airtight container and consume within one day for best freshness. To reheat, remove the pickled onions and greens, warm the bread and beef gently, then reassemble with fresh toppings.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use fresh beef instead of leftovers?
Yes, cook the beef to your preferred doneness before assembling the sandwich. Let it cool slightly so it doesn’t wilt the greens or avocado sauce.
How long should I pickle the onions for?
A light pickle of 20 minutes is enough to soften the onions and add tang without overpowering their crunch, but you can leave them longer for a stronger flavor.
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Beef Sandwich with Pink Pickled Onions and Green Beans Recipe
- Total Time: 30 minutes
- Yield: 1 sandwich 1x
Description
This Beef Sandwich with Pink Pickled Onions is a delightful blend of savory leftover beef, creamy avocado sauce, crisp green beans, and tangy pink pickled onions all sandwiched in a crisp demi baguette. Perfect for a quick, flavorful lunch that uses up leftovers creatively while delivering fresh, vibrant flavors.
Ingredients
Pickled Onions
- ½ red onion, finely sliced
- 60ml rice vinegar
- 1 tsp caster sugar
- ¼ tsp salt
Vegetables
- 100g green beans
Sandwich Components
- 1 demi baguette, halved
- 60g-70g leftover avocado sauce
- 300g leftover beef
- handful of leftover spicy greens
Instructions
- Prepare Pickled Onions: Mix the finely sliced red onion with rice vinegar, caster sugar, and ¼ tsp salt. Set this mixture aside to lightly pickle for 20 minutes, allowing the onions to soften and develop a tangy flavor.
- Cook Green Beans: Bring a pan of salted water to a boil over medium heat. Carefully add the green beans and cook for 3-4 minutes until tender but still crisp. Immediately plunge the beans into a bowl of ice-cold water for 5 minutes to stop the cooking process, then drain thoroughly and pat dry to maintain their bright color and crisp texture.
- Assemble Sandwich: Halve the demi baguette and spread the avocado sauce over the base layer. Layer the leftover beef evenly on top, followed by the spicy greens. Add the cooked green beans and then top with the pink pickled onions. Close the sandwich by pressing the halves together.
- Serve: Enjoy immediately or keep chilled for up to a day to allow flavors to meld.
Notes
- The sandwich keeps well chilled for up to one day, making it convenient for meal prep or packed lunches.
- You can substitute rice vinegar with apple cider vinegar if unavailable.
- If you don’t have leftover beef, grilled or roasted beef slices can be used as a substitute.
- For added crunch, consider adding thinly sliced cucumber or radishes.
- The avocado sauce adds creaminess and moisture; if unavailable, consider mashed avocado with a squeeze of lime.
- Prep Time: 25 minutes
- Cook Time: 5 minutes
- Category: Lunch
- Method: Stovetop
- Cuisine: Fusion
Keywords: beef sandwich, pink pickled onions, avocado sauce, green beans, leftover beef, quick lunch, easy sandwich, pickled onions, spicy greens, simple meal

